Question

express cosA in terms of cot A if sin A=cos A,find the value of 2tan2A+sin2A+1

Answer 1

Answer:

Hii dear user!

We will learn how to express the multiple angle of sin 2A in terms of tan A.

Trigonometric function of sin 2A in terms of tan A is also known as one of the double angle formula.

We know if A is a number or angle then we have,

sin 2A = 2 sin A cos A.

$= > \: \sin2a = 2 \: \: \: \: \: \frac{ \sin( \alpha ) }{ \cos(a) } . {cos \: }^{2} a$

Therefore sin2A =

$\frac{2 \tan(a) }{1 + { \tan }^{2}a }$

Hope my answer helps you dear!

Answer 2

Answer:

Hope this will be helpful to you please mark it as brilliant please